title: Bis{(Z)-[(E)-2-(pyridin-2-yl-methyl-idene)hydrazin-1-yl-idene][(pyridin-2-yl)methyl-sulfan-yl]methane-thiol-ato}nickel(II).
abstract: The title compound, [Ni(C13H11N4S2)2], was obtained by the reaction of S-2-picolyldi-thio-carbazate and pyridine-2-carbaldehyde with nickel(II) acetate. The Ni(II) atom is located on a twofold rotation axis and is bonded to four N atoms at distances of 2.037 (8) and 2.109 (9) Å, and to two S atoms at a distance of 2.406 (3) Å, leading to a distorted octa-hedral coordination. The angle between the mean planes of the coordinating moieties of the two symmetry-related tridentate ligands is 83.3 (2)°. In the crystal, complex mol-ecules are linked by weak C-H⋯S hydrogen bonds, π-π inter-actions between the pyridine rings [centroid-centroid distance = 3.775 (9) Å] and C-H⋯π inter-actions. The hydrogen-bonding inter-actions lead to the formation of layers parallel to (010); π-π inter-actions link these layers into a three-dimensional network.
authors.affiliation: School of Pharmacy, University of Nottingham Malaysia Campus, Selangor, Malaysia.
authors.forename: Teng-Jin
authors.initials: TJ
authors.lastname: Khoo
authors.forename: Mohammed Khaled Bin
authors.initials: MK
authors.lastname: Break
authors.forename: M Ibrahim M
authors.initials: MI
authors.lastname: Tahir
authors.forename: Karen A
authors.initials: KA
authors.lastname: Krouse
authors.forename: Andrew R
authors.initials: AR
authors.lastname: Cowley
authors.forename: David J
authors.initials: DJ
authors.lastname: Watkin